About NYGA

New York Gastroenterology Associates (NYGA) is a premier independent gastroenterology practice serving the New York City region for over 25 years.

Patients First Approach

While we are recognized as leading GI experts, we also deliver patient care that is attentive, personalized, and compassionate.

We commit to providing you with treatment that is effective, efficient, timely, and affordable.

Clinical Excellence

Our board-certified gastroenterologists are exceptionally trained and nationally recognized. We combine the most advanced ideas, tools, and techniques in gastroenterology with a personalized approach to your medical care. We are leading specialists in the prevention and early detection of cancer of the digestive tract, nutrition, Crohn’s disease, ulcerative colitis, and women’s digestive health.

Consistent, Dedicated Leadership

Being a leading medical practice means attracting an extraordinary team of diverse, talented doctors. It means continually striving for excellence. It means achieving regional, national, and international recognition.

At NYGA, leadership also means partnering with leading institutions—such as Mount Sinai, our partner at our two state-of-art outpatient endoscopy centers. It means establishing close professional relationships with leading experts in gastroenterology and affiliated fields from around the region and country so that the right referral or the best answer to your problem is one phone call away. Leadership also means being at the intellectual forefront. Our doctors are recognized thought leaders in the field of gastroenterology. Physicians across the tristate area often refer their most complex patients to NYGA. We undertake clinical investigations into upcoming GI treatments. Our doctors lecture and write widely, and conduct leading-edge research. We attract top recent graduates from the best training programs and we train the next generation of GI leadership.

At NYGA, leadership also means leveraging technology and communications to streamline your care. We strive to move you efficiently through our care and to communicate with you clearly and promptly. We respect your time while we care for your health. Leadership also means availability: an NYGA physician is on call 24/7 for emergencies; we offer same-day appointments during all weekdays; and NYGA physicians remained available and our endoscopy centers remained open throughout the COVID-19 pandemic.

The Doctors of NYGA

Exceptional Access to Care

NYGA doctors enjoy decades-long, deep relationships with leading physicians in gastroenterology and allied fields, and to the best academic medical centers and prestigious hospitals in New York and beyond, including

  • Mt. Sinai Hospital
  • Memorial Sloan-Kettering Cancer Center
  • Harvard Medical School
  • New York-Presbyterian Hospital
  • NYU Langone Medical Center
  • Johns Hopkins Medical Center
  • The Mayo Clinic

Our Heritage

Our founding doctors studied with the students of Burrill B. Crohn, MD, the pioneering gastroenterologist who first identified what became known as Crohn’s disease.

We studied and worked with Dr. Jerome Waye, the innovator of endoscopy and colonoscopy in America.

We are part of the Henry D. Janowitz Division of Gastroenterology at Mount Sinai Hospital, which is perennially ranked in the top ten nationally.

Leveraging this heritage, we achieve the highest standard of care for Crohn’s disease, ulcerative colitis, and endoscopic prevention of gastrointestinal tract cancer, among other conditions.

Technology Leadership

At NYGA, we are use state of the art, digital, high-definition endoscopy equipment. We offer patient-friendly telehealth services, which allows you to have a one-on-one video consultation with one of our GI experts without leaving your home.

We also offer a private, online patient portal. This allows you to review your test results and a summary of your visit immediately. It allows you to communicate directly with your doctor, without navigating a phone system or an assistant.

We use a state-of-the-art electronic medical record, which ensures patient privacy, seamless documentation, and real-time communication with your team of physicians, or outside testing facilities.

Ana Tuyama, MD

Ana Tuyama, MD

Gastroenterologist

Training and spending so many years at Mount Sinai School of Medicine, where gastroenterology is practiced at its best, surro...

Asher Kornbluth, MD

Asher Kornbluth, MD

Gastroenterologist

I chose gastroenterology for the ability to interact and care for patients with chronic diseases for a lifetime....

Barry Jaffin, MD

Barry Jaffin, MD

Gastroenterologist

While taking my first course in gastroenterology during my second year of medical school at Mount Sinai, I was intrigued that...

Daniel Adler, MD

Daniel Adler, MD

Gastroenterologist

All patient populations have GI problems and disease. I liked being able to care for a wide variety of people. Adolescents, a...

David Hertz

David Hertz

Chief Operating Officer

David Hertz is the Chief Operating Officer of New York Gastroenterology Associates (NYGA). He is responsible for the practice...

Eric Goldstein, MD

Eric Goldstein, MD

Gastroenterologist

Dr. Eric Goldstein is a clinical instructor at the Mount Sinai School of Medicine and attending physician at Mount Sinai Medi...

Faith Aronowitz, MS, RD, CDN

Faith Aronowitz, MS, RD, CDN

Dietitian

Early on in my nutrition training, I became fascinated by the gut microbiome and its seemingly endless connections to all fac...

James Aisenberg, MD

James Aisenberg, MD

Gastroenterologist

I am a Clinical Professor of Medicine at the Icahn School of Medicine at Mount Sinai, a Medical Director at the Endoscopy Cen...

James George, MD

James George, MD

Gastroenterologist

I love that gastroenterology is a field that incorporates both incredibly interesting medical problems as well as challenging...

Janie Yang, MD

Janie Yang, MD

Gastroenterologist

I find the human gastrointestinal tract to be fascinating because it involves multiple organ systems and can have such a majo...

Jay Desai, MD

Jay Desai, MD

Gastroenterologist

Gastroenterology is a fascinating field that requires a detailed understanding of the physiology of multiple organ systems as...

Jennifer Leong, MD

Jennifer Leong, MD

Gastroenterologist, Hepatologist

I was first drawn to gastroenterology as an ideal blend of comprehensive patient care and procedures, but it was during my...

Kenneth Miller, MD

Kenneth Miller, MD

Gastroenterologist

Patients prize Dr. Kenneth Miller’s dedication, commitment, and expertise in consultative gastroenterology. A tireless pati...

Laura Frado, MD, MS

Laura Frado, MD, MS

Gastroenterologist

Gastroenterology is a special field that allows me to care for a broad scope of conditions often presenting in different stag...

Leon Kavaler, MD

Leon Kavaler, MD

Gastroenterologist

One of my most memorable honors was being selected as the Chief Medical Resident at Mount Sinai Hospital. I spent a year teac...

Mary Ryan

Mary Ryan

Director of Billing

Mary Ryan is the Director of Billing for New York Gastroenterology Associates. Mary is a medical billing and revenue cycle ma...

Michele Kissous-Hunt, PA-C

Michele Kissous-Hunt, PA-C

Physician Assistant

Michele Kissous-Hunt is a board-certified physician assistant and has cared for patients with a wide range of gastrointestina...

Neville Bamji, MD

Neville Bamji, MD

Gastroenterologist

The complex physiology of the gastrointestinal tract has always fascinated me. Practicing gastroenterology allows physicians ...

Peter Legnani, MD

Peter Legnani, MD

Gastroenterologist

I found gastroenterology to be a dynamic intersection of multiple fields of study and practice. For example, I found that car...

Salitah Qureshi

Salitah Qureshi

Clinical Research Coordinator

Salitah Qureshi is the Clinical Research Coordinator at New York Gastroenterology Associates. She is responsible for managing...

Sameer Berry, MD, MBA

Sameer Berry, MD, MBA

Gastroenterologist

A gastroenterologist must spend a significant amount of time with each patient to understand the impact of their lifestyle, s...

Steven Marcano

Steven Marcano

Systems and Project Manager

Steven Marcano is the Systems and Project Manager with New York Gastroenterology Associates. Steven supports daily operation...

Steven Naymagon, MD

Steven Naymagon, MD

Gastroenterologist

I went to medical school knowing that I want to make a difference in people’s lives. As a medical student I was torn betwee...

Suzie Finkel, MS, RD, CDN

Suzie Finkel, MS, RD, CDN

Dietitian

I became a dietitian with the specific goal of helping people alleviate their digestive symptoms, and have found gastroentero...

Tamara Duker Freuman, MS, RD, CDN

Tamara Duker Freuman, MS, RD, CDN

Dietitian

The intricate relationship between how food and nutrients interact with the digestive tract captured my attention early on du...

Toby Heller, PA-C

Toby Heller, PA-C

Physician Assistant

I have always been fascinated with gastroenterology, before I even knew I wanted to work in healthcare. I have a very persona...

Tony Weiss, MD

Tony Weiss, MD

Gastroenterologist

When I was in training as a physician, I became fascinated with the digestive system and the profound effect gastrointestinal...

Yevgenia Pashinsky, MD

Yevgenia Pashinsky, MD

Gastroenterologist

I grew up thinking of food as a cultural and spiritual force that brings people together. It is incredibly rewarding to help ...

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